CA937878A - Utility trench and trench system - Google Patents

Utility trench and trench system

Info

Publication number
CA937878A
CA937878A CA129237A CA129237A CA937878A CA 937878 A CA937878 A CA 937878A CA 129237 A CA129237 A CA 129237A CA 129237 A CA129237 A CA 129237A CA 937878 A CA937878 A CA 937878A
Authority
CA
Canada
Prior art keywords
trench
utility
trench system
utility trench
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA129237A
Other versions
CA129237S (en
Inventor
C. Schille Samuel
B. Schack John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Concrete Conduit Co
Original Assignee
Concrete Conduit Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Concrete Conduit Co filed Critical Concrete Conduit Co
Application granted granted Critical
Publication of CA937878A publication Critical patent/CA937878A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • H02G9/065—Longitudinally split tubes or conduits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
CA129237A 1970-12-04 1971-12-03 Utility trench and trench system Expired CA937878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00095010A US3815304A (en) 1970-12-04 1970-12-04 Utility trench and trench system

Publications (1)

Publication Number Publication Date
CA937878A true CA937878A (en) 1973-12-04

Family

ID=22248571

Family Applications (1)

Application Number Title Priority Date Filing Date
CA129237A Expired CA937878A (en) 1970-12-04 1971-12-03 Utility trench and trench system

Country Status (2)

Country Link
US (1) US3815304A (en)
CA (1) CA937878A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133154A (en) * 1977-10-03 1979-01-09 Ruzicka Otto J System for supporting removable posts
GB2167609A (en) * 1984-10-19 1986-05-29 Univ Cardiff Cable system
JPS61157211A (en) * 1984-12-27 1986-07-16 大日コンクリ−ト工業株式会社 Covering type cable common ditch to which crosscut is mounted
JPS62284854A (en) * 1986-05-30 1987-12-10 共同カイテック株式会社 Floor panel apparatus
BR8707840A (en) * 1986-10-22 1989-08-15 Michael David Boyd MODULAR FLOOR AND PANEL
GB8708526D0 (en) * 1987-04-09 1987-05-13 Mcmullan J S Pre-fabricated cable housing
USRE35369E (en) * 1989-02-03 1996-11-05 Guilford (Delaware) Inc. Flooring system especially designed for facilities which house data processing equipment
US5499476A (en) * 1993-08-31 1996-03-19 Interface, Inc. Low profile raised panel flooring with metal support structure
US5673522A (en) * 1994-03-25 1997-10-07 Guilford, Inc. Junction box forlow profile raised panel flooring
US5675950A (en) * 1994-03-25 1997-10-14 Guilford (Delaware), Inc. Metal support framework for low profile raised panel flooring
US5713168A (en) * 1994-03-25 1998-02-03 Guilford (Delaware), Inc. Junction box for low profile raised panel flooring
USRE39097E1 (en) 1994-03-25 2006-05-23 Guildford (Delaware), Inc. Metal support framework for low profile raised panel flooring
US5828001A (en) * 1995-02-15 1998-10-27 Guilford (Delaware), Inc. Plastic junction box with receptacle boxes
US6702510B2 (en) 2002-01-03 2004-03-09 Ede Holdings, Inc. Utility sidewalk
EP1351358A1 (en) * 2002-04-05 2003-10-08 C & C MARSHALL LIMITED Corner and junction assembly for service provision ducting and components therefor
US7669371B2 (en) * 2003-12-15 2010-03-02 The Wiremold Company Modular underfloor distribution system
US7490443B1 (en) * 2006-03-01 2009-02-17 Bike Track, Inc. Modular flooring system
US8183471B2 (en) * 2008-08-12 2012-05-22 Mono-Systems, Inc. Cable raceway
GB2485616A (en) * 2010-11-22 2012-05-23 Bombardier Transp Gmbh Route for transferring electric energy to vehicles
US20170058517A1 (en) * 2015-08-29 2017-03-02 Clark Pacific Precast, Llc Integrated access floor system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA494176A (en) * 1953-07-07 H. Wardleworth Theophilus Hollow sub-flooring systems
US896984A (en) * 1907-07-13 1908-08-25 Horace C Freeman Conduit for electric wires.
CH218990A (en) * 1940-10-09 1942-01-15 Ziegeleien Zuercher Cable protection stone.

Also Published As

Publication number Publication date
US3815304A (en) 1974-06-11

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